Well, okay, there is that.

But still, that's just trappings, that's not
about Christmas like all of Moffat's have been.
I don't think "The Snowmen" particularly Christmassy. I don't even remember if it takes place at Christmas, or just in winter.
It does take place around Christmas but like you say it isn't particularly Christmassy which does dent the "All Moffat's Christmas specials are eleventy stupid notion" Most of them, yes, but not all!
I would agree that "The Snowmen" is more wintry than Christmassy. It's no more Christmassy than "Voyage of the Damned" or "The End of Time, Part 1." And while "The Doctor, the Widow, & the Wardrobe" is full of schmaltz, it's a story that still works independently of its Christmas setting.
While there's a lot of Christmas elements in "A Christmas Carol," that's a great story and a great twist on the classic Dickens story. Besides,
Doctor Who is far from the first series to do its own take on
A Christmas Carol. Nearly everyone else has done it-- Bugs Bunny, Mickey Mouse, Mr. Magoo, the Muppets,
Animaniacs, Xena, etc.
I also think "Last Christmas" is one of the better Christmas specials. Nick Frost is great as Santa Claus. The theme of "Every Christmas might be the last Christmas" dovetails quite poignantly with Danny Pink's death. And it has one of the top 3 funniest
Doctor Who lines ever: "There's a horror movie called
"Alien"? That's really offensive. No wonder they keep invading you."
As for River being in the Christmas special, I'm looking forward to it. Generally, I'm not a fan of the one-off special companions. But River is an exceptional exception!
